Oumonin was formerly part of the German Empire. In the German Empire, the place was called Úmonín.
The place is now called Úmonín and belongs to Czechoslovakia.
| Historical place name | Country | Administration | Time |
|---|---|---|---|
| Oumonin | Austro-Hungary | Kuttenberg | before the Treaty of Saint-Germain |
| Oumonín | Austro-Hungary | Kuttenberg | before the Treaty of Saint-Germain |
| Úmonín | Czechoslovakia | Kutná Hora | after the Treaty of Saint-Germain |
| Aumonin | German Empire | Kuttenberg | 1939 |
| Úmonín | German Empire | Kuttenberg | 1939 |
| Úmonín | Czechoslovakia | Kutná Hora | 1945 |
| Úmonín | Czechoslovakia | Střední Čechy | 1992 |